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Straightforward Oxidation of a Copper Substrate Produces an Underwater Superoleophobic Mesh for Oil/Water Separation
Author(s) -
Liu Na,
Chen Yuning,
Lu Fei,
Cao Yingze,
Xue Zhongxin,
Li Kan,
Feng Lin,
Wei Yen
Publication year - 2013
Publication title -
chemphyschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.016
H-Index - 140
eISSN - 1439-7641
pISSN - 1439-4235
DOI - 10.1002/cphc.201300691
Subject(s) - superhydrophilicity , materials science , underwater , copper , chemical engineering , portable water purification , nanoscopic scale , scalability , substrate (aquarium) , nanotechnology , composite material , computer science , chemistry , metallurgy , organic chemistry , contact angle , oceanography , database , engineering , geology
A superhydrophilic and underwater superoleophobic Cu(OH) 2 ‐covered mesh with micro‐ and nanoscale hierarchical composite structures is successfully fabricated through a one‐step chemical oxidation of a smooth‐copper mesh. Such mesh, without any further modification, can selectively separate water from oil/water mixtures with high separation efficiency, and possess excellent stability even after 60 uses. This method provides a simple, low‐cost, and scalable strategy for the purification of oily wastewater.
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